add todo to support sparse files

1 files changed, 3 insertions, 1 deletions

diff --git a/kernel/src/filesystem/ext2/inode.cpp b/kernel/src/filesystem/ext2/inode.cpp
index bf3f0cf..07a5525 100644
--- a/kernel/src/filesystem/ext2/inode.cpp
+++ b/kernel/src/filesystem/ext2/inode.cpp
@@ -31,7 +31,9 @@ namespace kernel::filesystem::ext2
     while (bytes_read < size)
     {
       auto const block_number = m_filesystem->map_inode_block_index_to_global_block_number(block_index, m_data);
-      if (block_number == 0)  // TODO BA-FS26 really correct?
+      // TODO BA-FS26 really correct? sparse files -> 0 means a full block with zeros --> function
+      // map_inode_block_index_to_global_block_number should return 0 if not possible to find an block
+      if (block_number == 0)
       {
         break;
       }